Now draw the following problems: 1) A firm wants to make a database of movies in...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Now draw the following problems: 1) A firm wants to make a database of movies in the following way: Movies are directed by directors and acted by actors and actresses. And users will give review or rating to specific movie, actor, actress and director on review section. A movie has a specific image, movie ID, story line, title, year, genre and amount of profit. Actors, actresses and directors have full names, IDs, birthdays, ages, images, biographies, home countries. And every user has unique username, first name, last name, password, email. And review will contain review id, category, comment and rating. Now use entity-relationship diagram (ERD) to design the concept of this situation. 2) In a school, there are teachers and students. Teachers take subjects, take exams and give marks to the students. Identify some attributes of teachers, exams, marks and students and then use entity-relationship diagram (ERD) to design the concept of this situation. 3) In a bookstore, we have to consider authors, books, criticisms. Authors will write books and criticism will criticize the works. An author has author ID, full name, date of birth, date of death, region, era and description. A work has ID, title, year and pages. A criticism has, URL, title, summary and publication. Now use entity-relationship diagram (ERD) to design the concept of this situation. 4) Clients will buy cars with the help of salesmen in a car storehouse. A car has license number, model, manufacturer and year. A client has ID, full name, address, phone number and date of purchase. A salesman has ID, first name, last name, address, date of joining and phone. Now use entity-relationship diagram (ERD) to design the concept of this situation. 5) Workers work in projects and each worker belongs to one specific department. Workers also give orders which contain order date, orderID, delivery date, amount and supplier. Each worker has WorkID, name, address, date of birth, date of joining and age. Each project has project id, project name, cost and time. Each department has dept_ID, name and specific address. Now use entity-relationship diagram (ERD) to design the concept of this situation. 6) Employees work for departments which control projects. Employee works on projects and each employee has dependent(s). Each employee has name, address, DOB and Salary. Each department has number, location and name. A project has ID, name and location. A dependent has name, relationship, date of birth and age. Now use entity-relationship diagram (ERD) to design the concept of this situation. 7) Customers purchase mobile phones. Mobiles maintain logins; customers pay bills and maintain logins. Identify some attributes of customers, mobiles, logins and bills and then use entity-relationship diagram (ERD) to design the concept of this situation. Now draw the following problems: 1) A firm wants to make a database of movies in the following way: Movies are directed by directors and acted by actors and actresses. And users will give review or rating to specific movie, actor, actress and director on review section. A movie has a specific image, movie ID, story line, title, year, genre and amount of profit. Actors, actresses and directors have full names, IDs, birthdays, ages, images, biographies, home countries. And every user has unique username, first name, last name, password, email. And review will contain review id, category, comment and rating. Now use entity-relationship diagram (ERD) to design the concept of this situation. 2) In a school, there are teachers and students. Teachers take subjects, take exams and give marks to the students. Identify some attributes of teachers, exams, marks and students and then use entity-relationship diagram (ERD) to design the concept of this situation. 3) In a bookstore, we have to consider authors, books, criticisms. Authors will write books and criticism will criticize the works. An author has author ID, full name, date of birth, date of death, region, era and description. A work has ID, title, year and pages. A criticism has, URL, title, summary and publication. Now use entity-relationship diagram (ERD) to design the concept of this situation. 4) Clients will buy cars with the help of salesmen in a car storehouse. A car has license number, model, manufacturer and year. A client has ID, full name, address, phone number and date of purchase. A salesman has ID, first name, last name, address, date of joining and phone. Now use entity-relationship diagram (ERD) to design the concept of this situation. 5) Workers work in projects and each worker belongs to one specific department. Workers also give orders which contain order date, orderID, delivery date, amount and supplier. Each worker has WorkID, name, address, date of birth, date of joining and age. Each project has project id, project name, cost and time. Each department has dept_ID, name and specific address. Now use entity-relationship diagram (ERD) to design the concept of this situation. 6) Employees work for departments which control projects. Employee works on projects and each employee has dependent(s). Each employee has name, address, DOB and Salary. Each department has number, location and name. A project has ID, name and location. A dependent has name, relationship, date of birth and age. Now use entity-relationship diagram (ERD) to design the concept of this situation. 7) Customers purchase mobile phones. Mobiles maintain logins; customers pay bills and maintain logins. Identify some attributes of customers, mobiles, logins and bills and then use entity-relationship diagram (ERD) to design the concept of this situation.
Expert Answer:
Answer rating: 100% (QA)
Solution here are the entityrelationship diagrams ERDs for the problems you mentioned 1 Movie database ERD entity Movie movieID int PK title string year int genre string storyLine string profit int en... View the full answer
Related Book For
Fundamentals Of Database Systems
ISBN: 9780133970777
7th Edition
Authors: Ramez Elmasri, Shamkant Navathe
Posted Date:
Students also viewed these databases questions
-
1. Mr. i holds the following preferences over outcomes w, x, y, and z: xPw, xPy, zPx, yPz, wPy, and wPz. (a) Identify all five possible subsets of these outcomes that contain three or more outcomes....
-
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
-
Googles ease of use and superior search results have propelled the search engine to its num- ber one status, ousting the early dominance of competitors such as WebCrawler and Infos- eek. Even later...
-
Not long ago, a conflict between a paper company and a coalition of environmental groups arose over the potential use of a Maine river for hydroelectric power generation. As one aspect of its case...
-
Neglecting friction and the radius of the pulley, determine the tension in cable BCD and the reaction at support A when 144 d = mm. 60 150 me
-
"Credit Risk Data" file posted on Campus Web contains data on loan applications and measures of credit risk for the applicants. The database contains the purpose of the loan, the balance of checking...
-
Define outsourcing and offshoring. Compare and contrast the two as HR administrative tools. Give examples of the decision factors to consider when choosing one over the other.
-
Najm Company uses a standard costing system to account for its pita bread manufacturing process. The bread is sold in packages of one dozen pieces. The company has set the following cost standards...
-
A meteorologist is 3.8 km from a thunderstorm when she sees a lightning bolt emerge from the storm. In how many seconds will she hear thunder after seeing the lightning? Assume air temperatur = 20C...
-
Blair Jokinen is a sales manager for Pearson, one of the top publishing companies in the world. Blair manages 40 sales representatives who visit college professors in Europe. On Saturday mornings,...
-
Baril Company purchased land for $115,000 with the intentions of constructing a new operating facility. The land purchase included a dilapidated building that was removed at a cost of $16,000. The...
-
News release In the first quarter of 2020, real personal consumption expenditure was $13,117 billion and the PCEPI (the deflator) was 110.88. In the first quarter of 2021, real personal consumption...
-
In May 2020, currency was $1,824 billion; demand deposits were $2,126 billion; other liquid deposits were $12,234 billion; small denomination time deposits were $466 billion; and retail money market...
-
In year 1, an economy is at full employment and real GDP is 350 million, the GDP deflator is 220 (price level is 2.2) and the quantity of money is 50 million. In year 2, the quantity of money is...
-
Ingram went to a used car lot in a large city and bought a used car. On his way home from the lot, the car that he had purchased broke down. The engine stopped running altogether. The used car lot...
-
Suppose that the exchange rate rose from 80 yen per U.S. dollar to 90 yen per U.S. dollar. What is the effect of this change on the quantity of U.S. dollars that people plan to sell in the foreign...
-
52. A consumer holds money to meet spending needs. This would be an example of the: A. Use of money as a measure of value B. Use of money as legal tender C. Liquidity demand, also known as...
-
Outline a general process applicable to most control situations. Using this, explain how you would develop a system to control home delivery staff at a local pizza shop.
-
Find out more about ongoing projects such as Spark, Mesos, Shark, and BlinkDB as they relate to the Berkeley Data Analysis Stack.
-
Suppose that the system crashes before the [write_item, T 2 , D, 25, 26] entry is written to the log in Figure 22.1(b). Will that make any difference in the recovery process? Figure 22.1(b) (b) A BCD...
-
Compare the file commands listed in Section 16.5 to those available on a file access method you are familiar with.
-
You want to determine the mean age of all statistics instructors at the University of Colorado. representative Samples? In Exercises 1316, identify the sample, population, and sampling method. Then...
-
A sample of manufactured CDs is obtained by using a computer to randomly generate a number between 1 and 1,000 for each CD, and the CD is selected if the generated number is 1,000.
-
You want to predict the winner of an upcoming election for student body president. Suggest a sampling method that is likely to produce a representative sample. Explain why you chose this method over...
Study smarter with the SolutionInn App